כִּשְׂח֣וֹק לִ֭כְסִיל עֲשׂ֣וֹת זִמָּ֑ה וְ֝חָכְמָ֗ה לְאִ֣ישׁ תְּבוּנָֽה׃
미련한 자는 행악으로 낙을 삼는 것 같이 명철한 자는 지혜로 낙을 삼느니라
Rashi
As it is sport for a fool to carry out a sinful plot Heb. זמה, a plot of sins.
Rashi
[so is] wisdom like sport to a man of understanding; i.e., in his eyes, it is easy to do.